201204572 六、發明說明： 【發明所屬之技術領诚】 [0001] 本發明涉及一種裝飾膜之預成型方法及該方法中用到之 加熱設備。 【先前4支術】 [0002] 可檇式電子裝置如移動電話、個人數位助理等之殼體在 製作時採用模内裝飾成型（IML/IMD)之方法益趨流行， 模内裝飾成型技術結合了薄膜印刷、預壓成型及與注塑 成型等技術與方法，使成品之表面具有一層透明材質之 薄膜，藉以保護薄膜下層之印刷圖按不被刮花，使裝飾 條持久。因此，該項技術已逐漸取代傳統直接在注塑成 型後在成型品上進行喷塗、移印而獲得具有袭飾條之成 品之方法。 [0003] 099123718 模円裝飾成型万法：甲 ，2)高壓預成型該薄 膜，使該薄膜形成具有立體形狀之薄膜件；3)裁切該薄 膜件;4)將薄膜件置於注塑模具内注塑，使溶融二膠 與該薄膜件-體成型形成-成品’且所述薄膜位於成品 之表面。其中，在高壓預成型薄膜過程中，需要提供 高壓模具，先將薄膜定位於—範本上，然後通過 設備加熱使薄膜軟化，接著高壓模具之兩範本人“ ' 將薄膜充分地壓成所需形狀之薄膜件缺 ° ^以 輕t，薄膜會發生伸縮變形，對於形成在薄2加熱過 ，尤其係印刷在薄臈上有高精度尺寸定位要、之圖案 ，會受到伸縮變形之影響而導 #求之裝飾條 裝飾條定位偏差或變形 表單編號A0101 第4頁/共〗4頁 0992041761-0 201204572 [0004] [0005] [0006] Ο [0007] [0008] Ο [0009] [0010] [0011] 種確保裝飾條定位精度要 另外，有必 之加熱設備 ο 【發明内容;] 繁於上述内交 η合’有必要提供一 求之裝飾k㈣型方法。 要提供-種上《伽之職財法中採用 一種裝飾聨之 模具，包括—方法，包括如下步驟：提供一高壓 所述上模形成Γ及—上模，所述下模開設有一模穴， 有多個氣孔 穴配合H所述模芯上開設 提供-待料m飾膜，將職飾料位於模穴内， 該裝飾膜场财料條； 提供一加熱設備，該加熱設備包括一加熱器及連接在加 熱器下端之—治具，加熱設備移入上下模之間，所述加 熱器加熱，所述治具下壓於裝飾膜上之裴飾條區域；加 熱器加熱持續一舞時間，所述裝飾膜軟化而貼附於模穴 表面； 加熱設備抬起同時退出； 上模向下運動合模，所述模芯不接觸裝飾膜，其與裝飾 膜間具有間隙，模芯之氣孔散出高溫高壓氣吹向裝飾膜 表面，從而將裝飾膜軟化充分地完全地貼附於模穴表面 ，形成為預成型之形狀； 冷卻該預成型後之裝飾膜，開模，取出裝飾膜。 099123718 表單编號A0101 0992041761-0 201204572 [0012] 一種上述裝飾膜之預成型方法中採用之加熱設備，加熱 設備包括一加熱器及連接在加熱器一端之一治具，所述 治具包括一連接頭與一壓塊，所述壓塊安裝於連接頭上 ，該壓塊為矽膠材質製成。 [0013] 相較於習知技術，本裝飾膜之預成型方法中在對裝飾膜 進行加熱軟化時，通過所述治具壓合裝飾膜之裝飾條區 ，使得裝飾膜之裝飾條定位精確且不會發生變形；同時 ，所述治具結構簡單，通過選用所述之矽膠材質之壓塊 ，不會損壞裝飾膜及裝飾條。 【實施方式】 [0014] 本發明裝飾膜之預成型方法較佳實施例中，所述裝飾膜 為一表面之部分區域印刷有裝飾條之矩形薄片。該裝飾 膜可用作模内鑲件注塑（IML)成型之基體膜，以形成電 子裝置殼體之外表層。該裝飾膜之材料可以選自為聚碳 酸酯（PC)或聚對苯二曱酸乙二醇酯（PET)等樹脂材料 〇 [0015] 將該裝飾膜應用於模内鑲件注塑成型時，需要先將裝飾 膜形成為立體形狀，使該裝飾膜之形狀與模具之型腔内 之形狀匹配，且對應待製作之電子裝置殼體外表面形狀 ，從而將該裝飾膜設置於型腔内，與注入之塑膠一體成 型〇 [0016] 結合參閱圖1及圖2，所述裝飾膜之預成型方法，包括如 下步驟：提供一高壓成型設備，該高壓成型設備包括一 高壓模具10及一加熱設備30。該高壓模具10包括一下模 12及一上模14。所述下模12之合模面上開設有至少一模 099123718 表單編號 A0101 第 6 頁/共 14 頁 0992041761-0 201204572 [0017] Ο ο [0018] 穴122，較常見為一模四穴。該模穴〗22内凸設有一凸塊 J24，該凸塊124表面之形狀對應預成型後之襞飾膜之形 狀。所述上模14之合模面上形成有與所述模穴122對應配 合之至少一模芯（未圖示），該模芯之形狀與所述模穴 j 22之形狀大致匹配，該模芯上開設有多個氣孔，該氣孔 用以供模芯散出氣體。 所述加熱設備30包括一加熱器32及一治具34。所述加熱 器32用以散熱，通常為瓷體内置電阻絲形成，通過電阻 絲加熱瓷體而使得瓷體均勻散熱。所述涂具34連接在加 熱器32之下端，鱗治馬34包括一連接頭341與連接頭341 一體安裝之一壓塊342。該連接頭341包括一桿部3412及 一夾持部3414。該桿部3412與加熱器32連接。所述夾持 部3 414開設有一夾持槽3 416，該夾持槽3 41 6呈矩形槽結 構。所述壓塊36為矩形塊體，其一端裝夾於所述夾持槽 341 6内，另一端伸出於夾持槽3416，伸出之該端用以壓 抵裝飾膜。該壓塊342為特殊之矽膠材質製成，如可選擇 一種石夕膠’發膠之級別為PU500/8，硬度範圍為75_8〇。 如此在壓抵裝飾膜時，壓塊342不會損傷該裝飾膜。 提供一待預壓成型之裝飾膜20，所述裝飾膜2〇可為矩形 薄片，皮革等，其可置於所述模穴122内且定位於凸塊 124表面。該裝飾膜2〇上印刷有裝飾條22，該裝飾條22 在製作產品中有高精度尺寸定位要求。將該裝飾膜2〇定 位於所述模穴122内，且印刷有裝飾條22之表面與該凸塊 12 4之表面貼附。 [0019] 099123718 將加熱設備30移入上模14與下模12之間’該治具34之壓 表單編號Α0101 第7頁/共14頁 0992041761-0 201204572 [0020] [0021] [0022] [0023] [0024] 塊342壓抵所述裝飩腺。 膜2 0之印刷有裝飾條2 2之區域。所针-加熱器32散熱且持嬙e ^ a 叮述 、躓段時間，如此，裝飾膜20將軟化 而貼附於凸塊124 κ ，且該裝飾膜20軟化後之形狀與所 凸塊124之表面形妝料由 ^ 、吓疋 ί應。該過程中，由於裝飾臈2〇之步 飾條2 2為所述治且^ 、 之壓塊342所壓抵，裝飾膜2〇之 飾條22所在區域位置不會發生變化且不會發生變形。、 加熱器32加熱一段昧 等間，加熱設備30從所述上模14血 模12之間抬起並退出. '、 將所述上模U與下模12合模，上㈣之模 模穴122相配合，上捃η 「俱以之 上模u之模芯貼近所述凸塊12 成型後之裝飾瞑20，尤Μ上之預 旁因為上ru/ 飾膜2〇具有—定之間隙，避 :^ 、裝飾祺20接觸而損壞裝飾祺20，接著广 过之氣孔散出高溫高壓 接者权 高壓軟化飾劇進行進-步之 之形狀。 、飾㈣將充分地形相需之預成型 最後，將預成型後之裝飾福喝，將 分開，取出預成型之裝飾膜30 : 、下模12 上述裝飾膜之預成型方 時，通過所述治具壓人 膜進行加熱軟化 口裝飾膜之裳都條區 之裝㈣在加熱軟化後位置保持精確，且不模 。同時，所述加熱設備結構簡單 發生變形 ^ 进用石夕膠枒皙+ 壓塊，不會損壞薄膜及裝飾條。 負之 可以理解，為使裝飾膜20之裝飾條22所在 壓塊342充分壓合，所壓塊342 品域為所述 汀根據裝飾祺2〇骏飾 099123718 表單編號A0101 第8頁/共14頁 條區 099204l7fii_, 201204572 之變化而對應變化，使得所述壓塊與裝飾膜壓合之表面 與裝飾膜之裝飾條所在之區域相匹配。 【圖式簡單說明】 [0025] 圖1係本發明裝飾膜之預成型方法中所採用高壓模具及加 熱設備之示意圖； [0026] 圖2係裝飾膜之預成型方法中加熱設備應用時狀態示意圖201204572 VI. Description of the Invention: [Technology of the Invention] [0001] The present invention relates to a method of preforming a decorative film and a heating apparatus used in the method. [Previous 4 Techniques] [0002] The use of in-mold decorative molding (IML/IMD) methods for the production of portable electronic devices such as mobile phones and personal digital assistants is becoming more popular. In-mold decorative molding technology is combined. The techniques and methods of film printing, pre-forming and injection molding make the surface of the finished product have a transparent film, so as to protect the printed layer of the lower layer from being scratched, so that the decorative strip is durable. Therefore, this technology has gradually replaced the conventional method of spraying and printing on a molded article directly after injection molding to obtain a finished product. [0003] 099123718 mold decoration molding method: A, 2) high-pressure preforming the film, so that the film forms a three-dimensional shape of the film; 3) cutting the film; 4) placing the film in the injection mold Injection molding causes the molten di-gel to form a finished product with the film and the film is located on the surface of the finished product. Among them, in the process of high-pressure preforming film, it is necessary to provide a high-pressure mold, firstly positioning the film on the template, and then softening the film by heating the device, and then the two molds of the high-pressure mold "" fully press the film into the desired shape. The film is missing. ^The light is t, the film will be stretched and deformed. For the heat formed in the thin 2, especially the high-precision size positioning on the thin enamel, the pattern will be affected by the expansion and contraction. The decorative strip decorative strip positioning deviation or deformation form number A0101 page 4 / total 4 pages 0992041761-0 201204572 [0004] [0005] [0006] [0007] [0008] Ο [0009] [0010] [0011 In order to ensure the positioning accuracy of the decorative strips, there is a need for additional heating equipment. [Inventive content;] It is necessary to provide a decorative k (four) type method for the above-mentioned internal intersection η. The method adopts a decorative enamel mold, comprising the method, comprising the steps of: providing a high pressure, the upper mold forming a cymbal and an upper mold, the lower mold opening a cavity, and having a plurality of vent holes for the mold Core open Providing a material for the m-preservation, the decorative material is located in the cavity, the decorative film field material strip; providing a heating device, the heating device comprising a heater and a fixture connected to the lower end of the heater, the heating device is moved in Between the upper and lower dies, the heater is heated, the fixture is pressed down on the enamel strip area on the decorative film; the heater is heated for a dance time, and the decorative film is softened and attached to the surface of the cavity; Lifting and exiting at the same time; the upper mold moves downward and clamps, the core does not contact the decorative film, and there is a gap between the decorative film and the decorative film, and the air hole of the core dissipates high temperature and high pressure gas to the surface of the decorative film, thereby softening the decorative film Fully adhered completely to the surface of the cavity, formed into a preformed shape; the decorative film is pre-formed, the mold is opened, and the decorative film is taken out. 099123718 Form No. A0101 0992041761-0 201204572 [0012] A decorative film as described above The heating device used in the pre-forming method, the heating device comprises a heater and a fixture connected to one end of the heater, the fixture comprises a connector and a pressing block, and the pressing block is installed The pressure block is made of a silicone material on the connector. [0013] Compared with the prior art, in the preforming method of the decorative film, when the decorative film is heated and softened, the decorative film is decorated by the fixture. The strip area makes the decorative strip of the decorative film accurately positioned and does not deform; at the same time, the jig has a simple structure, and the decorative film and the decorative strip are not damaged by selecting the pressing piece of the rubber material. [0014] In a preferred embodiment of the preforming method of the decorative film of the present invention, the decorative film is a rectangular sheet printed with a decorative strip in a partial area of a surface. The decorative film can be used as an in-mold insert molding (IML) molding. The base film is formed to form a surface layer outside the housing of the electronic device. The material of the decorative film may be selected from a resin material such as polycarbonate (PC) or polyethylene terephthalate (PET). [0015] When the decorative film is applied to an in-mold insert injection molding, The decorative film is first formed into a three-dimensional shape, the shape of the decorative film is matched with the shape of the cavity of the mold, and corresponds to the shape of the outer surface of the housing of the electronic device to be fabricated, so that the decorative film is disposed in the cavity, and Injected plastic integrally formed 〇 [0016] Referring to FIG. 1 and FIG. 2, the decorative film pre-forming method comprises the following steps: providing a high-pressure forming apparatus comprising a high-pressure mold 10 and a heating device 30 . The high pressure mold 10 includes a lower mold 12 and an upper mold 14. The mold surface of the lower mold 12 is provided with at least one die. 099123718 Form No. A0101 Page 6 of 14 0992041761-0 201204572 [0017] Ο ο [0018] The hole 122 is more commonly a four-hole. A protrusion J24 is protruded in the cavity 22, and the shape of the surface of the protrusion 124 corresponds to the shape of the pre-formed enamel film. The mold clamping surface of the upper mold 14 is formed with at least one core (not shown) corresponding to the cavity 122, and the shape of the core substantially matches the shape of the cavity j 22, the mold A plurality of air holes are formed in the core, and the air holes are used for the core to dissipate gas. The heating device 30 includes a heater 32 and a jig 34. The heater 32 is used for heat dissipation, and is usually formed by a built-in resistance wire of a ceramic body, and the ceramic body is heated by a resistance wire to uniformly dissipate the ceramic body. The applicator 34 is attached to the lower end of the heater 32, and the scaler 34 includes a connector 341 and a connector block 341 integrally mounted with a block 342. The connector 341 includes a stem portion 3412 and a clamping portion 3414. The rod portion 3412 is connected to the heater 32. The clamping portion 3 414 defines a clamping groove 3 416 which has a rectangular groove structure. The pressing block 36 is a rectangular block, one end of which is clamped in the clamping groove 341 6 and the other end protrudes from the clamping groove 3416, and the protruding end is used to press against the decorative film. The pressing block 342 is made of a special silicone material, such as a type of Shijiao rubber, which has a PU500/8 level and a hardness range of 75_8 inches. Thus, when pressed against the decorative film, the compact 342 does not damage the decorative film. A decorative film 20 to be pre-formed is provided. The decorative film 2 can be a rectangular sheet, leather or the like which can be placed in the cavity 122 and positioned on the surface of the bump 124. A decorative strip 22 is printed on the decorative film 2, and the decorative strip 22 has high-precision dimensional positioning requirements in the manufactured product. The decorative film 2 is positioned in the cavity 122, and the surface on which the decorative strip 22 is printed is attached to the surface of the bump 124. [0019] 099123718 Moves the heating device 30 between the upper die 14 and the lower die 12 'The pressure form number of the jig 34 Α 0101 Page 7 / 14 pages 0992041761-0 201204572 [0020] [0021] [0022] [0023 [0024] Block 342 is pressed against the gland. The film 20 is printed with the area of the decorative strip 22. The needle-heater 32 dissipates heat and holds 嫱e ^ a 踬, 踬 time, so that the decorative film 20 will soften and adhere to the bump 124 κ , and the shape and the bump 124 of the decorative film 20 are softened. The surface makeup is made of ^, scared. In this process, since the decorative strip 2 2 is pressed by the pressing block 342 of the treatment and the pressing, the position of the decorative strip 2 of the decorative film 2 does not change and does not deform. . The heater 32 is heated for a period of time, and the heating device 30 is lifted from the upper mold 14 between the blood molds 12 and exited. ', the upper mold U and the lower mold 12 are clamped, and the upper (four) mold cavity is closed. 122 phase matching, upper 捃 η "All the cores of the upper mold u are close to the bumps 12 after the molding of the 瞑 20, especially on the front side because the ru / decorative film 2 〇 has a certain gap, avoid :^, the decoration 祺20 contact damages the decoration 祺20, and then the vents that are widely circulated emit high temperature and high pressure, and the high pressure softening is performed in the shape of the step. The decoration (4) will fully form the necessary preforms. After pre-forming the decoration, the decoration will be separated, and the pre-formed decorative film 30 will be taken out. When the lower mold 12 is pre-formed on the decorative film, the heating film is heated by the curing device to soften the decorative film. The installation of the strip (4) maintains the position after heating and softening, and is not moldable. At the same time, the structure of the heating device is simply deformed. The stone 桠皙 桠皙 压 + press block is used, and the film and the decorative strip are not damaged. It is understood that in order to fully press the pressing block 342 of the decorative strip 22 of the decorative film 20, The pressure block 342 is the same as the decoration according to the decoration 祺 2〇 饰 099123718 Form No. A0101 Page 8 / 14 page strip 099204l7fii_, 201204572 changes, so that the pressure block and the decorative film pressure surface [0025] FIG. 1 is a schematic view showing a high-pressure mold and a heating device used in a preforming method of the decorative film of the present invention; [0026] FIG. 2 is a decoration State diagram of the application of the heating device in the pre-forming method of the film
[0027] 【主要元件符號說明】 高壓模具：10 [0028] 下模：12 [0029] 模穴：122 [0030] 凸塊：124 [0031] 上模：14 [0032] 裝飾膜：20 [0033] 裝飾條：22 [0034] 加熱設備：30 [0035] 加熱器：32 [0036] 治具：34 [0037] 連接頭：341 [0038] 桿部：3412 [0039] 夾持部：3414 表單編號A0101 099123718 第9頁/共14頁 0992041761-0 201204572 [0040] 夾持槽：3416 [0041] 壓塊：342 099123718 表單編號A0101 第10頁/共14頁 \ 0992041761-0[Description of main component symbols] High-pressure mold: 10 [0028] Lower mold: 12 [0029] Cavity: 122 [0030] Bump: 124 [0031] Upper mold: 14 [0032] Decorative film: 20 [0033 Decorative strip: 22 [0034] Heating equipment: 30 [0035] Heater: 32 [0036] Fixture: 34 [0037] Connector: 341 [0038] Rod: 3412 [0039] Clamping: 3414 Form number A0101 099123718 Page 9 of 14 0992041761-0 201204572 [0040] Clamping groove: 3416 [0041] Clamping block: 342 099123718 Form number A0101 Page 10 / Total 14 pages \ 0992041761-0